Levels of engagement in politics have never been higher and the passionate argument and debate which characterised the referendum has been inspiring.

Many people are disappointed with the result of the referendum and the level of devolution recommended by the Smith Commission, however Scotland will only make progress if we debate our views openly and with respect.

It is essential that in that debate, conduct does not fall short of the high standard that is rightly expected by the public. My clear view is that setting fire to something because you don’t agree with it is not acceptable behaviour.

I have written to the Convener of the party's Disciplinary Committee, making a complaint against the four individuals concerned, and the four will be suspended from the party until that complaint is heard.

Scottish First Minister Nicola Sturgeon has criticised SNP Councillors for burning the Smith Commission report, she says "Setting fire to something because you don't agree with it is unacceptable behaviour."